jQuery: Simple Optimization – save jQuery selections to variables

Save selections into variables:

each $() represent a query, so if you’re doing multiple actions on the same ID, save the initial $() query to a variable and then use the variable to do actions on it later.

For example:

This equals 3 jQuerys; 3 $(‘#id1’)

Refactor to:
var $id1 = $(‘id1’)

Having a ‘$’ in front of the variable is a common indicator that the variable is storing a jQuery selection.

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